Author Topic: no movement from servo HELP  (Read 461 times)

Offline longshot

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no movement from servo HELP
« on: May 20, 2018, 05:55:06 AM »
props to Bioethical for the electrical schematic... managed to follow it but hit a snag...

servo has been modded and tested on its own ... works
-using diagram it does nothing ...
-when i follow  diagram iím only getting 1.5 to 1.8volts at the vin... thereís no ground going back to power source... is this normal?
-if i pull a ground from the dc dc converter i get 5v as expected is this correct?
-what version of pinchangeint do i download?
-is it normal i get an orange warning about pin 1 during arduous compiling? it still compiles it just poops up a warning
-do i set my radio as if i have a servo directly attached?

lost need help

Offline Bioethical

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Re: no movement from servo HELP
« Reply #1 on: May 24, 2018, 03:13:00 AM »
Hello Longshot,
Welcome to the forum.
1. the servo motor is to turn to both sides 360 degrees. If it has a stop, fix it yourself. There are you tube tutorials for it.
2. what exact part of the diagram you don't understand?
3. the negative comes all the way from the batery, power board up to the converter.
4. you need to adjust the converter so it provides the proper voltage 7.2 Volts as it says in the instructions.
5. copy and paste the code as it comes in the gray area of the electronics instructions, do not add up anything else. Just past it to the arduino sketch and then to the arduino nano.
6. choose a channel in you RC that works preferentially with the gear switch (I use the turn on button of the spektrum DX7s) in order to make the the servo to run to both sides 360 degrees.

DO NOT FORGET TO READ ALL THE INSTRUCTIONS AND OTHER GUYS' POSTS THOROUGHLY.

I hope this helps

Offline longshot

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Re: no movement from servo HELP
« Reply #2 on: May 25, 2018, 07:45:45 PM »
Thanks for the fast followup. Managed to do a different setup. Nothing wrong with your wiring, I just couldn't get it working.

Wired up what I normally do with linear actuators. 2 limit switches and 2 diodes leading to the ground leg of motor and power. I flip a switch the motor rotates left lifting the arm and opposite switch position to rotate down. The diodes in combo with the switches will will allow current to flow one way and a respective switch to stop and vice versa.

Saves some weight, can take a picture for folks if interested.